POWER3 Details

SMP - 2-16 CPUs per node

64-bit architecture and address space

Clock speeds range from 200 - 450 MHz

There are 4 different types of POWER3 nodes, referred to as Winterhawk-1,
Winterhawk-2, Nighthawk-1 and Nighthawk-2, which vary in number of CPUs,
clock speeds, etc. A diagram of the 16-CPU Nighthawk-2 node is shown
below.

Memory/Cache:

L1 Data Cache: 64 KB, 128 byte line, 128-way associative

L1 Instruction Cache: 32 KB, 128 byte line, 128-way associative

L2 Cache: up to 16 MB, 128 byte line, 8-way associative

L2 cache has its own bus - can be accessed simultaneously with main
memory

Maximum Memory: depends on model - up to 64 GB shared memory for the
16-way NH2 high nodes.